Product Specifications

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DolpHin™ SeriesModels PH10 and ORP10 Electrochemical Sensors andAccessories for pH and ORP Measurements

The DolpHin Series are precision electrochemical sensors used in conjunction with a widely accepted set of

mounting accessories to measure pH and ORP. They are rugged, easy-to-use devices that are particularly well suited for use in high temperature installations.

INTRODUCTION

The DolpHin Series are a family of high performance pH and ORP sensors with extensive features and accessories.

Breakthrough performance in stability, accuracy, and long life makes DolpHin the premier pH and ORP sensor for on-line process applications.

Laboratory testing and extensive field trials have proven DolpHin’s superior performance. It outlasts other sensors in high temperature and temperature cycling applications up to 121°C (250°F). It remains fast and accurate, while conventional pH sensors lose sensitivity and are slow to respond to pH changes.

Foxboro engineers have formulated a unique pH glass (patent pending) which makes DolpHin exceptionally stable, accurate, and long lasting, even in the harshest process applications.

Each component in the DolpHin sensor has been designed to maximize ease-of-use, long life, and accuracy, including: the precision reference junction,

high temperature electrolyte, reference electrode with Nafion ion barrier, ultra fast automatic temperature compensation, and a single rugged body that fits the widest variety of mounting accessories. The elegant DolpHin design delivers an easy-to-use sensor with unmatched pH and ORP measurement performance.

FEATURE HIGHLIGHTS• Unique pH glass - exceptionally stable, remains

fast and accurate after severe temperature cycling (121°C/250°F)

• Proven high stability, high accuracy, and long life

• Easy-to-use body design simplifies installation, calibration, maintenance, and replacement

• More reliable measurements permit tighter process control

• Longer life plus easy mounting reduces maintenance costs

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GENERAL DESCRIPTION

The DolpHin Series consists of Model PH10 for pH measurements and Model ORP10 for ORP measurements. These models share many of the same characteristics, such as body type, internal reference electrode, temperature elements, cables, options, and accessories.

The difference between the two models is in the measuring electrode. Model PH10 offers four pH electrode choices, and Model ORP10 offers two ORP electrode choices. Each of these electrode types is discussed in the Model Code Selection Guide section.

The commonality of body type allows users to standardize on DolpHin pH and ORP sensors while enjoying the flexibility to install them in any way appropriate for the application. Every DolpHin sensor fits with any of the ball valve insertion assemblies, bushings, tees, and other accessories shown in this document.

DolpHin sensors are easy to use; specifically, easy to install, replace, calibrate, and maintain. The “disposable” design means low cost of maintenance, and elimination of internal spare parts inventories. The sensor is mechanically rugged, chemically and thermally resistant, and can withstand extended exposure to high temperature applications, thereby making it ideally suited for the harshest industrial applications.

TRANSMITTER/ANALYZER COMPATIBILITY

DolpHin sensors are fully compatible with Foxboro Model 870ITPH Intelligent Transmitters and Model 875PH Intelligent Analyzers.

When used with the Foxboro Intelligent devices, DolpHin supports sensor diagnostics, including:

• Broken glass electrode• Coating of sensing surface• Aging (slope degradation)• Liquid leakage into sensor body• Preamp failure• ATC, temperature element failure.

The coating and aging diagnostics are useful in scheduling preventive maintenance. And all the diagnostics are useful in ensuring a reliable pH or ORP measurement. DolpHin sensors are also compatible with older models 873PH and 873DPX analyzers, although with a restriction on temperature elements (see Model Code Selection Guide). Analyzer 873APH is compatible with DolpHin Model PH10 with glass electrodes and 100 Ω temperature elements only.

SENSOR BODY

The sensor is offered in a PVDF(1) body material. PVDF is an ideal material because of its excellent pressure, temperature, and mechanical properties. It is virtually immune to attack from most chemical solutions.

The sensor body has a single, sealed probe design, with no replaceable parts, making it a low maintenance sensor.

The glass electrode pH models contain no process wetted metal.

The body has two integral 3/4 NPT mounting threads; one at the cable end for submersion or ball valve insertion mounting, the other near the sensing end for in-line mounting.

In the upper body of the sensor, there are two grooves, used to adapt to the Universal mounting adapters shown in the Accessories section. The Universal Adapter set provides an easy means for installing, removing, and replacing the sensor.

TYPICAL pH AND ATC RESPONSE

The following test data is typical of DolpHin performance and relative to premium process pH sensors supplied by other manufacturers.

Slope % is a measure of the accuracy and sensitivity of a pH sensor. Slope % is the difference, in mV, of a sensor’s output in two different pH buffers as compared to the expected or ideal mV difference between the same two buffers. Sensors are typically 100% of expected value when new, and the slope % deteriorates as the sensor ages; 80% is frequently used as the low limit acceptable for a process application. High temperature and temperature cycles cause pH sensitive glass to lose sensitivity more rapidly. The two significant effects that a pH user sees is loss of Slope % and slowing of the response to pH.

The superiority of the DolpHin high temperature electrode is clearly demonstrated in Figures 1, 2, and 3.

Accurate pH measurement is also affected by the sensor’s ability to provide fast, accurate temperature measurement for temperature compensation. The DolpHin sensor includes a temperature element that has been optimized for speed of response, and it is in close thermal contact with the process liquid, as well as the pH and reference electrodes. DolpHin superiority for both the standard temperature element and the ultra fast enhanced element is shown in Figure 4.

(1) PVDF is polyvinylidene fluoride, commercially available as Kynar.

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Figure 1. pH Response, Aging, 100°C

Figure 2. pH Response Time, 100°C

100

90

80

70

60

50

0 5 6 10 12 15 16 20 22 25

% SLOPE DEGRADATION OVER TIME WHILESUBJECTED TO TEMPERATURE CYCLES OF 100˚C

NUMBER OF DAYS AT 100˚C

% S

LOP

E

= DolpHin

= SUPPLIER "A"

= SUPPLIER "B"

360

320

280

240

200

160

120

80

40

0

0 5 6 10 12 15 16 20 22 25

pH RESPONSE TIMEAFTER EXPOSURE TO TEMPERATURE CYCLES OF 100˚C

NUMBER OF DAYS AT 100˚C

TIM

E, S

EC

ON

DS

= DolpHin

= SUPPLIER "A"

= SUPPLIER "B"

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Figure 3. pH Response Time, 121°C Figure 4. Temperature Response Time, 25° to 100°C

X X

X

X

X XX

+500

+400

+300

+200

+100

0.00

-100

-200

-300

ME

AS

UR

EM

EN

T IN

mV

0 1 2 3 4 5 6TIME, MINUTES

ELECTROMETRIC SPEED OFRESPONSE AFTER 120 HOURS AT 121˚C

= DolpHin

= SUPPLIER "A"

= SUPPLIER "B"

= SUPPLIER "C"X

= DolpHin - Standard

= DolpHin - Enhanced

= SUPPLIER "A"

= SUPPLIER "B"

= SUPPLIER "C"X

X

X

X

X

X

100

90

80

70

60

50

40

30

20

10

0

TE

MP

ER

ATU

RE

, ˚C

-2 -1 0 1 2 3 4 5 6TIME, MINUTES

ATC - TEMPERATURE RESPONSE TIME25˚C TO 100˚C

Speed

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AUTOMATIC TEMPERATURE COMPENSATION

ATC, utilizing a resistance temperature detector (RTD), is a built-in feature in all DolpHin Sensors. Either 2- or 3-wire, 100 or 1000 Ω platinum RTDs, or a Balco 2-wire, 3 kΩ RTD may be selected. These RTDs are available with an enhanced response speed. Refer to Model Code Selection Guide section.

INTERNAL PREAMPLIFIER

The sensor is offered with or without an internal preamplifier. The preamplifier converts the high impedance pH signal to a low impedance signal, which is less prone to interference. With the internal preamplifier, the 15.2 m (50 ft) transmission distance can be extended to 152 m (500 ft) as shown in the “PHYSICAL SPECIFICATIONS” section. Refer also to Model Code Selection Guide section.

PRECISION DOUBLE JUNCTION REFERENCE ELECTRODE

The external, process wetted reference junction is ceramic material with ultra fine porosity and small surface area. This style junction provides minimum variability of junction potential which contributes to noise and drift problems typically seen in junctions with large surface area.

Internal electrolyte is a high temperature gel that resists poisoning.

The reference electrode is a silver/silver chloride half cell. The reference electrode is encased in a Nafion ion barrier which allows charge transfer while

minimizing poisoning of the electrode and preventing silver ion from migrating to the external junction and causing clogging.

EASE OF USE

Experienced pH users know that sensor maintenance can be time-consuming and costly. DolpHin Series sensors provide extended service life, thus reducing the number of maintenance calls. However, the sensor occasionally requires removal from process for calibration, possibly cleaning, and eventually replacement.

DolpHin features and accessories are set up to make sensor maintenance quick and easy. The Variopin quick cable connector allows the sensor to be easily disconnected from the cable.

The sensor may be mounted in many different ways. Typical mounting configurations are listed below and shown in Figure 5:

• In situ with 3/4 NPT Mounting• With a Universal Bushing Assembly• Universal Tri-Clamp Connection Assembly• In Sample Line via a Flow Chamber• In Sample Line via a Tee Kit and Bushings• In line via a Variable Insertion Assembly• In line via a Ball Valve Assembly with Purge Ports

The sensors’ process connections are also backward compatible with most existing Foxboro and other sensors presently in the field.

Figure 5. Typical Sensor Mounting Configurations

BASICSENSOR3/4 NPT

UNIVERSALBUSHING,

ADJUSTABLE 1 NPT

UNIVERSAL TRI-CLAMP

CONNECTIONASSEMBLY

IN SAMPLELINE VIA

A TEE KIT

IN LINE VIA A VARIABLEINSERTIONASSEMBLY

IN LINE VIAA BALL VALVE

ASSEMBLY WITHPURGE PORTS

IN SAMPLELINE VIAA FLOW

CHAMBER

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(1) EPDM is Ethylene-Propylene Terpolymer, also known as EPR (Ethylene-Propylene Rubber).(2) Chemraz is a Perfluoroelastomer.

MODEL CODES

Model Code – pH Sensor

Description Model

DolpHin pH Sensor PH10

pH Electrode TypeDomed, High Temperature, Glass Bulb with Protective Guard -1Domed, High Temperature, Glass Bulb without Protective Guard -2Flat Ruggedized Glass -3Antimony -4

PreamplifierNone NInternal Preamplifier (a)(b) P

Temperature Compensation2-Wire, 100 Ω Platinum RTD 13-Wire, 1000 Ω Platinum RTD (b) 22-Wire, 100 Ω Platinum RTD, Enhanced Response Speed 33-Wire, 1000 Ω Platinum RTD, Enhanced Response Speed (b) 42-Wire, 3 kΩ Balco RTD (f) 5

Sensor Termination10 ft (3.05 m) Integral Cable Terminated with Crimped-on Straight Pin Lugs A10 ft (3.05 m) Integral Cable Terminated with Variopin Quick Connector (b)(c) BVariopin Quick Connector Integral to Sensor (b)(c) Q

Optional SelectionsEPDM(1) O-Rings (d) -EChemraz(2) O-Rings (d) -CIntegral Std. Temp Sensor Cable, 20 ft (6.1 m) long (e) -2Integral Std. Temp Sensor Cable, 30 ft (9.1 m) long (e) -3Integral Std. Temp Sensor Cable, 40 ft (12.2 m) long (e) -4Integral Std. Temp Sensor Cable, 50 ft (15.2 m) long (e) -5Integral High Temp Sensor Cable, 10 ft (3.05 m) long (a)(e) -1HIntegral High Temp Sensor Cable, 20 ft (6.1 m) long (a)(e) -2HIntegral High Temp Sensor Cable, 30 ft (9.1 m) long (a)(e) -3HIntegral High Temp Sensor Cable, 40 ft (12.2 m) long (a)(e) -4HIntegral High Temp Sensor Cable, 50 ft (15.2 m) long (a)(e) -5H

Examples: PH10-1N3B-E2H(a) High Temperature cable not available with Preamplifier Code “P”.(b) Selection of Preamp (“P”), with 3-wire RTD (“2” or “4”) and with Variopin Quick Connector (“B” or “Q”) may not be made at the

same time. Any two are allowed together, but not all three.(c) Requires mating patch cord with integral Variopin Quick Connector, if not customer supplied.(d) Standard O-ring material is Viton.(e) Cable options applicable to Sensor Termination Codes “A” and “B” only.(f) Contact Foxboro for availability.

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Model Code – ORP Sensor

Description Model

DolpHin ORP Sensor ORP10

ORP Electrode TypePlatinum -1Gold -2

PreamplifierNone NInternal Preamplifier (a)(b) P

Temperature Compensation2-Wire, 100 Ω Platinum RTD 13-Wire, 1000 Ω Platinum RTD (b) 22-Wire, 100 Ω Platinum RTD, Enhanced Response Speed 33-Wire, 1000 Ω Platinum RTD, Enhanced Response Speed (b) 42-Wire, 3 kΩ Balco RTD (f) 5

Sensor Termination10 ft (3.05 m) Integral Cable Terminated with Crimped-on Straight Pin Lugs A10 ft (3.05 m) Integral Cable Terminated with Variopin Quick Connector (b)(c) BVariopin Quick Connector Integral to Sensor (b)(c) Q

Optional SelectionsEPDM O-Rings (d) -EChemraz O-Rings (d) -CIntegral Std. Temp Sensor Cable, 20 ft (6.1 m) long (e) -2Integral Std. Temp Sensor Cable, 30 ft (9.1 m) long (e) -3Integral Std. Temp Sensor Cable, 40 ft (12.2 m) long (e) -4Integral Std. Temp Sensor Cable, 50 ft (15.2 m) long (e) -5Integral High Temp Sensor Cable, 10 ft (3.05 m) long (a)(e) -1HIntegral High Temp Sensor Cable, 20 ft (6.1 m) long (a)(e) -2HIntegral High Temp Sensor Cable, 30 ft (9.1 m) long (a)(e) -3HIntegral High Temp Sensor Cable, 40 ft (12.2 m) long (a)(e) -4HIntegral High Temp Sensor Cable, 50 ft (15.2 m) long (a)(e) -5H

Examples: ORP10-1P4A-C5(a) High Temperature cable not available with Preamplifier Code “P”.(b) Selection of Preamp (“P”), with 3-wire RTD (“2” or “4”) and with Variopin Quick Connector (“B” or “Q”) may not be made at the

same time. Any two are allowed together, but not all three.(c) Requires mating patch cord with integral Variopin Quick Connector, if not customer supplied.(d) Standard O-ring material is Viton.(e) Cable options applicable to Sensor Termination Codes “A” and “B” only.(f) Contact Foxboro for availability.

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MODEL CODE SELECTION GUIDE

PH10 ELECTRODE TYPE SELECTIONS

PH10-1 Electrode – Domed Glass Bulb with Protective Guard

Unique pH glass formulation provides full 0 to14 pH range and high temperature operation up to 121°C/250°F. Fast and accurate pH response suitable for severe temperature and harsh chemical applications. Low sodium ion error. Suitable for low conductivity water down to 10 µS/cm. Built-in pvdf guard protects bulb from breakage while in service and while handling during installation and maintenance. See Figure 6.

Figure 6. PH10-1 Electrode, Domed Bulb with Protective Guard

PH10-2 Electrode – Domed Glass Bulb without Protective Guard

This selection provides the same glass bulb and pH performance as selection “1” above, but without the protective pvdf guard. This selection should be made when the application requires full pH range or high temperature operation and the process stream contains a high level of solid material that might otherwise get caught on the protective guard. The user must exercise greater caution while handling this electrode type during installation and maintenance. See Figure 7.

Figure 7. PH10-2 Electrode, Domed Bulb without Protective Guard

PH10-3 Electrode – Flat Ruggedized Glass

Completely flat, smooth sensing surface. This glass electrode is designed for overall ruggedness and is especially well suited for applications with solids that coat or wear on the electrode. The smooth sensing surface tends to be self-cleaning by the action of the process flow. This design is also well suited to minimize breakage due to handling. This electrode selection is best suited for applications in the 2 to 12 pH range with temperatures less than 85°C (185°F). See Figure 8.

Figure 8. PH10-3 Electrode, Flat Ruggedized Glass

PH10-4 Electrode – Antimony

Metallic antimony electrode is available for applications containing hydrofluoric acid (HF). The pH range for an application is best when kept within the 1 to 10 pH range. Antimony should not be used in food and beverage, potable water, acid copper solutions, strong oxidizers/ reducers such as chromates, chlorine, hypochlorites, or sulfides.

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ORP10 ELECTRODE TYPE SELECTIONS

ORPI0-1 Electrode – Platinum ElectrodePlatinum is the default selection for most ORP applications. Large surface area, high purity platinum provides full mV ORP range, and high temperature up to 121°C (250°F). See Figure 9.

Figure 9. ORP10 Platinum Electrode

ORPI0-2 Electrode – Gold ElectrodeThe gold ORP electrode is similar in size, shape, and purity as the platinum ORP electrode. Gold provides an alternative electrode choice for those rare applications where platinum is not well suited; for example, cyanide reduction systems.

PREAMPLIFIER SELECTIONS

Preamplifier Selection “N”This option allows for no integral preamplifier in the sensor. Select “N” in applications where the entire sensor body is exposed to process temperatures above 85°C (185°F), up to 121°C (250°F), such as submersion tank installation or hot tap/ball valve installations. The temperature limit of the preamp is 85°C (185°F) and it resides inside the upper portion of the sensor.

NOTEIt is recommended that the optional high temperature cable be specified in high temperature submersion applications.

Also select “N” when planning to use the DolpHin sensor with a non Foxboro made transmitter or analyzer. Power and wiring of the preamplifier is one area where sensor and transmitters may be incompatible when mixing equipment from different manufacturers.

Preamplifier Selection “P”This selection provides an integral preamplifier located in the upper body of the DolpHin sensor. The preamp is highly recommended when any one of the glass pH electrodes is selected. The preamp provides unity gain and conversion to low impedance of the high impedance mV signal of the glass pH electrode. The preamp provides signal integrity in electrically noisy environments, in installations where the sensor cable may be moving, and through sensor cable connections to an extension cable. A preamp is required when the distance from the sensor to the transmitter exceeds 15.2 m (50 ft).

The preamp should not be selected when the upper half of the sensor body is submerged in process solutions above 85°C (185°F). The preamp, however, may be selected (and is recommended) in all applications where the sensor is mounted such that only the sensing end or lower half of the sensor is exposed to process temperature; for example, in the universal bushing accessory.

NOTEOptional selections “-1H” to “-5H” for high temperature cable are not available when the preamp is selected.

TEMPERATURE COMPENSATION SELECTIONSDolpHin pH and ORP sensors include a precision temperature measuring element. Foxboro analyzers and transmitters use this temperature measurement to provide automatic temperature compensation of pH measurements. ORP measurements do not require compensation. The temperature measure-ment element is included in ORP10 models for process temperature indication, and in PH10 models for both process temperature indication and ATC.

DolpHin sensor design provides superior temperature compensation. The precision RTD is located in the tip of the sensor in close thermal contact with the pH electrode, the reference electrode, and the process liquid. Highly effective temperature compensation is achieved because the actual temperature of the electrodes is measured.

Temp. Comp. Selection “1” – 2-Wire 100 Ω Platinum RTD

This selection is the most widely applicable. Many non Foxboro analyzers and all Foxboro analyzers/transmitters accept this RTD. Foxboro analyzers in the 873 family require this selection or the “3” selection below. The platinum 100 Ω, 2-wire RTD is suitable for most routine process applications.

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MODEL CODE SELECTION GUIDE (Cont.)

Temp. Comp. Selection “2” – 3-Wire 1000 Ω Platinum RTD

This selection should be made when high pH accuracy is required. A 3-wire RTD compensates for the error due to cable length and junction box connections, thus providing more accurate temperature compensation.

NOTEThis selection is not available when a preamplifier and a Variopin quick connector are both selected in the same sensor model code.

Temp. Comp. Selection “3” – 2-Wire 100 Ω Platinum RTD, Enhanced Response Speed

Make this selection in critical pH applications or when process temperature changes rapidly and when using an 873PH Analyzer. Also make this selection when fast temperature response is required along with Variopin quick connector and preamplifier are all required.

This RTD housing protrudes slightly (0.17 in) from the sensing tip of DolpHin, providing greater thermal contact with the process. This selection is similar to selection “1”, but with ultra fast temperature response. Refer to Figures 4 and 10.

Figure 10. Platinum RTD Housing –Enhanced Response Speed

Temp. Comp. Selection “4” – 3-Wire 1000 Ω Platinum RTD, Enhanced Response Speed

This selection provides the optimum accuracy and speed of response for temperature indication and pH temperature compensation. Make this selection for the most critical pH application when using 870ITPH Transmitter or 875PH Analyzer. This selection is similar to selection “2” for RTD accuracy and similar to selection “3” for temperature speed of response.

Temperature Compensation Selection “4” may also be used for applications requiring the flat glass electrode, but consideration should be made for the slight protrusion of the RTD housing on the flat surface.

NOTEThis selection is not available when a preamplifier and a Variopin quick connector are both selected in the same sensor model code.

SENSOR TERMINATION SELECTIONS

Sensor Termination Selection “A” – 3.05 m (10 ft) Integral Cable with Pin Lugs

The sensor cable is an integral part of the sensor. This selection is best suited for installations such as submersion, hot tap ball valve insertion, or in-line with universal bushing mount.

Sensor Termination Selection “B” – 3.05 m (10 ft) Integral Cable with Variopin Quick Connector

This selection is best suited for a submersion type installation where integral cable is desired and a long patch cord is also required. The Variopin quick connector provides IP67 rating with easy disconnect/reconnect capability. Requires mating patch cable of appropriate length for application. The mating patch cable does not need replacement when the sensor is replaced. Also, the transmitter or analyzer remains closed and does not need rewiring during sensor replacement. This selection is not suitable for use in hot tap or ball valve type insertion assembly installations.

Sensor Termination Selection “Q” – Variopin Quick Connector Integral to Sensor

Similar to selection “B” but without cable integral to the sensor. This selection provides easy sensor replacement without running new cable and rewiring transmitter/analyzer. Prevents cable wind-up problem. Requires mating patch cable of appropriate length. Variopin quick connector cuts maintenance costs, reduces time required for sensor replacement. This selection is suitable for all sensor mounting styles, including DolpHin Series ball valve/insertion assemblies. See Figure 11.

Figure 11. Variopin Quick ConnectorIntegral to Sensor

RTDHOUSING

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OPTIONAL SELECTIONS

Optional Selections “-E” and “-C”Viton O-rings are standard. EPDM (“-E”) or Chemraz (“-C”) O-ring materials are available as options. O-rings are process wetted and should be selected based on chemical compatibility with process materials and temperatures.

Optional Selections “-2”, “-3”, “-4”, “-5” – Extended Length Integral Cable

Extended length integral cable is available in 3.05 m (10 ft) increments up to 15.2 m (50 ft) maximum. For applications that require the transmitter and sensor to be separated by greater than 15.2 m (50 ft), use of the standard length cable with junction box is recommended, and an extension cable up to a maximum of 152 m (500 ft) between sensor and transmitter. Also, for lengths greater than 15.2 m (50 ft), the preamp selection “P” must be made. See Figures 12 and 13.

Optional Selections “-1H”, “-2H”, “-3H”, “-4H”, “-5H” – High Temperature Sensor Cable

High temperature cable is rated to 125°C (257°F). This cable is used in applications where the entire sensor body and some portion of the sensor cable are exposed to process temperatures above the standard cable specification of 85°C (185°F).

Installations such as ball valve insertion assembly, or submersion mounting, expose the cable to process temperature. In these cases, optional high temperature cables should be considered. It is appropriate for cost purposes to use high temperature cable from the sensor running out of the hot zone to a cooler area where a junction box or Variopin connection is made to a lower cost, standard temperature extension cable. This approach is especially cost effective if the application demands frequent sensor replacement.

OPERATING, STORAGE, AND TRANSPORTATION CONDITIONS

(a) For in-line installations of a DolpHin sensor with internal preamp, the upper body must be in ambient temperatures of 54°C (130°F) or less.

PROCESS PRESSURE AND TEMPERATURE SPECIFICATIONS

NOTEThe process temperature ratings of the sensor assembly are given in Table 1. In the table, in-line installation means that only the sensing end, not the sensor body, is immersed in the solution. Submersion installation is when the entire sensor assembly (sensing end and body) is completely submersed. In addition to the normal operating pressure and temperature limits of the sensor as shown above, the DolpHin mounting accessories also have pressure and temperature limits. The specifications for the mounting accessories, shown in the Accessories section further in this document, may be greater or less than the sensor specifications. Always use the lesser of the two specification limits when designing the installation of a DolpHin sensor with accessories.

InfluenceReference Operating

ConditionsNormal Operating Condition

LimitsStorage and Transportation

Limits

Process Temp. 25 ±3°C (77 ±5°F) See Table 1 -5 and +65°C (-23 and +149°F)

Process Press. 0 kPa gauge (0 psig) 0 and 700 kPa (0 and 100 psig) Not Applicable

Mounting Position

Vertical; with Electrode End Down

Vertical up to ±90°; with Electrode End Downward

Not Applicable

Table 1. Process Temperature Ratings

Measuring Electrode Type Without Internal Preamp.

With Internal Preamp

Ball Valve or Submersion Installation

In-LineInstallation (a)

Domed Glass - pH 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)Flat Glass - pH 0 to 85°C (32 to 185°F) 0 to 85°C (32 to 185°F) 0 to 85°C (32 to 185°F)Antimony - pH 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)Platinum - ORP 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)Gold - ORP 0 to 121°C (32 to 250°F) 0 to 85°C (32 to 185°F) 0 to 121°C (32 to 250°F)

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PERFORMANCE SPECIFICATIONS(Under Reference Operating Conditions unless otherwise specified)

pH MeasurementPerformance specifications are for the domed, high temperature glass electrode (pH electrode type PH10-1..., and PH10-2...). Other electrode choices include flat ruggedized glass pH, antimony pH, platinum ORP, and gold ORP. Selection of these electrodes is based on application considerations. Refer to Model Code Selection Guide section.

(a) The interval of time between the initiation of the input step, and the time at which the output signal first attains 90% of its final steady state value.

Accuracy - Temperature Measurement100 Ω AND 1000 Ω PLATINUM RTD

± [0.30°C + (0.005)T]where T = measured temperature in °C.

Temperature Measurements Speed of Response (see Note below)

100 Ω PLATINUM RTD<2.5 min with Temperature Compensation Selection 1<1.0 min with Temperature Compensation Selection 3

1000 Ω PLATINUM RTD<2.5 min with Temperature Compensation Selection 2<1.0 min with Temperature Compensation Selection 4

NOTEThe interval of time between the initiation of the input step, and the final time at which the output signal first attains 80% of its final steady state value.

Parameter

EMF Efficiency 99.3% ±0.7%

Stability ±0.02 pH/24 hours

Electrometric ResponseNote (a)

<15 s,4 to 10 pH

Sodium Ion Error < 0.05 pH in NaNO3 at pH 12.4

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FUNCTIONAL SPECIFICATIONS

Measuring ElectrodepH MEASUREMENT

Domed glass bulb, flat glass, or antimonyORP MEASUREMENT

Platinum or Gold

Reference ElectrodeThe reference electrode is Ag/AgCl (silver/silver chloride) and is isolated from the internal salt-bridge by a Nafion ion barrier.

Measurement RangepH MEASUREMENT RANGE

Domed Glass 0 to 14 pH

Flat Glass2 to 12 pH

Antimony1 to 11 pH

ORP MEASUREMENT RANGEPlatinum and Gold

+2000 to -2000 mV

Electromagnetic CompatibilityWhen properly installed per the applicable installation instructions with Foxboro Models 870ITPH Transmitters, 875PH Analyzers, applicable Models 873, or other compliant transmitters or analyzers, the DolpHin pH and ORP sensors comply with the electromagnetic compatibility requirements of European EMC Directive 89/336/EEC by conforming to the following CENELEC and IEC Standards: EN-61326, and IEC 61000-4-2 through 61000-4-6.

Automatic Temperature Compensation (ATC)Integral temperature element provides temperature measurement for pH compensation over the full rated temperature range of the pH sensor (0 to 121°C, 32 to 250°F).

Solution Temperature MeasurementSolution temperature measurement is based on the RTD. The Resistance-Temperature response is per DIN 43760, or IEC 751-1983, and is as follows:

Solution Temperature

Corresponding Resistance in ohms using the:

°C °F100 ohm

RTD1000 ohm

RTDBalcoRTD

0 32 100.00 1000.0 2663

10 50 103.90 1039.0 2798

20 68 107.79 1077.9 2933

25 77 109.73 1097.3 3000

30 86 111.67 1116.7 3067

40 104 115.54 1155.4 3202

50 122 119.40 1194.0 3337

60 140 123.24 1232.4 3472

70 158 127.07 1270.7 3607

80 176 130.89 1308.9 3742

90 194 134.70 1347.0 3877

100 212 138.50 1385.0 4013

110 230 142.28 1422.8 4148

120 248 146.06 1460.6 4283

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PHYSICAL SPECIFICATIONS

Process Wetted Parts MaterialsBODY

Non-conductive, Kynar, black, FDA compliant, mineral filled

CHEMICAL COMPATIBILITYKynar, known by polyvinylidene fluoride, or PVDF, is chemically resistant to virtually all acids, bases, and salts within the 0 to 14 pH range. It is also resistant to halogens, halogenated solvents, alcohols, and oxidants.

MEASURING ELECTRODEGlass or antimony for pH; and platinum or gold for ORP

REFERENCE ELECTRODECeramic junction

SOLUTION GROUNDConductive Kynar (nonmetallic)

SEALSViton is standard; EPDM (also known as EPR) and Chemraz are optionally available.

Sensor MountingThe upper housing of the sensor has 3/4 NPT external threads on both ends for use with widely accepted mounting accessories. The housing body also has wrench flats to facilitate sensor installation and removal. The sensor, with the appropriate accessories, is suitable for both in situ (submersible) and in-line installations. As indicated previously, the sensor can be mounted up to 90° from the vertical position, with the electrode end downward. Figure 5 shows typical sensor mounting configurations, and the “ACCESSORIES” section describes and specifies each accessory and its application.

Dimensions• See “Dimensions - Nominal” section for Sensor

dimensions.• See DP 611-172 for dimensions of the Sensor

Ball Valve and Insertion Tube Assemblies.• See DP 611-173 for dimensions of Sensor

Accessories.• See DP 014-256 and DP 611-160 for dimensions

of Q0101CF and BS807BZ junction boxes, respectively.

Sensor Connections and Cable LengthsThe sensor is offered with electrical terminations, as follows:• Integral Sensor Cable 10 ft (3.05 m) long;

terminated with crimped-on straight pin lugs. Optional cable lengths of 20, 30, 40, or 50 ft (6.1, 9.1, 12.2, or 15.2 m) are offered.

• Integral Sensor Cable 10 ft (3.05 m) long; terminated in a Variopin quick connector. Optional cable lengths of 20, 30, 40, or 50 ft (6.1, 9.1, 12.2, or 15.2 m) are offered.

• Variopin quick connector integral to sensor housing end.

Standard cable is PVC jacketed. High temperature cable is cross-linked, irradiated, polyethylene (xple). Variopin quick connector is IP 67 rated, with nickel plating and Viton O-ring.

When a preamplifier internal to the sensor is used, the transmitter or analyzer can be up to 500 ft (152 m) away from the sensor. If no sensor internal preamplifier is used, the distance is limited to 50 ft (15.2 m). See Figure 12 for typical cable and cable extension configurations.

Figure 12. Typical Integral Cable with Pin Lugs and Cable Extension Configurations

Figure 13. Typical Variopin Quick Connector and Patch Cord Configurations

LEGENDS-N = SENSOR, NO PREAMPS-P = SENSOR, WITH PREAMPJB = JUNCTION BOX; T/A = TRANSMITTER OR ANALYZER

S-N T/A

S-NS-NS-N T/AJB

S-P T/AS-NS-N

50 ft

to 500 ft total

to 50 ft total

to 50 ft

10 to 40 ft

JB

LEGEND

S-N-BS-N-QS-P-BS-P-Q

T/AVPto 50 ft total

S-N-Q

S-N-B T/A10 to 40 ft S-NS-NVPto 50 ft total

S-P-B T/A10 to 50 ft S-NS-NVPto 500 ft total

T/AVPto 500 ft total

S-P-Q

SENSOR, NO PREAMP, CABLE WITH VARIOPINSENSOR, NO PREAMP, INTEGRAL VARIOPINSENSOR, WITH PREAMP, CABLE WITH VARIOPINSENSOR, WITH PREAMP, INTEGRAL VARIOPIN

VP = VARIOPIN QUICK CONNECTOR

PSS 6-1C3 APage 15

ELECTRICAL SAFETY SPECIFICATIONS (1)

NOTES1. These sensors have been designed to meet the Electrical Safety descriptions listed above. For detailed

information, or status of testing laboratory approval, or certifications, contact Foxboro.

2. Specify Electrical Safety Design Code when ordering sensor for applications requiring certification.

Testing Laboratory, Types of Protection, and Area Classification Application Conditions

Electrical Safety Design

Code (2)

ATEX Intrinsically safe; II 1 G, EEx ia II C, Zone 0; hazardous locations.

Connect to certified 870IT pH Transmitter. Temperature Class T4 to T6.

CS-E/EAA

CSA intrinsically safe for Class I, Division 1, Groups A, B, C, and D; Class II, Division 1, Groups E, F, and G; and Class III, Division 1.

Connect to certified 870IT pH Transmitter per MI 611-206. Temperature Class T6.

CS-E/CAA

CSA nonincendive for Class I, Division 2, Groups A, B, C, and D.

Connect to 870IT pH Transmitter, or 873PH, 873APH, or 875 PH Analyzer per MI 611-206. Temperature Class T6.

CS-E/CNN

FM intrinsically safe for Class I, Division 1, Groups A, B, C, and D; Class II, Division 1, Groups E, F, and G; and Class III, Division 1.

Connect to approved 870IT pH Transmitter per MI 611-206. Temperature Class T4 at 85°C maximum ambient.

CS-E/FAA

FM nonincendive for Class I, Division 2, Groups A, B, C, and D; Class II, Division 2, Groups F and G; and Class III, Division 2.

Connect to approved 870IT pH Transmitter, or 873PH, 873APH, or 875PH Analyzers per MI 611-206. Temperature Class T4 at 85°C maximum ambient.

CS-E/FNN

SAA Ex, ia, IIC. Intrinsically safe, Gas Group IIC, Zone 0.

Connect to certified 870IT pH Transmitter. Temperature Class T4 and T6.

CS-E/AAA

PSS 6-1C3 APage 16

ACCESSORIES

Universal Bushing AssemblyThe universal bushing assembly is comprised of a bushing, a lockscrew, a Viton O-ring, a back-up ring, and a split ring, and provides the following features:• Allows sensor insertion and removal without

causing cable “wind-up”.

• Allows adjustment of submersion depth at either 2.1 or 3.1 in (53 or 79 mm) with the flat electrode, or either 2.5 or 3.5 in (63 or 89 mm) with the domed glass electrode.

• Provides a 1 NPT process connection, rather than the 3/4 NPT connection on the sensor body.

The bushing assembly is available in 316 ss or PVDF materials. See Figures 14 to 17 and table below.

Figure 14. Universal Bushing and Sensor Showing Split Ring,

O-ring, and Back-up Ring Installed on Sensor in Position for 2.1 inch Insertion Depth

Figure 15. Universal Bushing Shown with Flat Glass Sensor Installed in Position for 2.1 inch Insertion Depth

Figure 16. Universal Bushing Shown with Flat Glass Sensor Installed in Position for 3.1 inch Insertion Depth

Figure 17. Universal Bushing Assembly

Table of Universal Bushing Assemblies

Material Assembly Part No. Thread

316 ss BS810XC 1 NPT316 ss BS810XD ISO R-1 1/2PVDF BS810XB 1 NPTPVDF BS810XE ISO R-2

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)PVDF 0.7 MPa at 90°C

0.35 MPa at 121°C(100 psi at 194°F)(50 psi at 250°F)

Photo File 0209024 D

Photo File 0209024 F

Photo File 0209024 G

BUSHINGLOCKSCREW

BUSHING

1 NPTPROCESSCONNECTION

SENSORASSEMBLY(REFERENCE)

O-RING SEAL,SPLIT RING,BACKUP RING,AND STOP USEDIN ONE OF TWOLOCATIONS ONLY.

3/4 NPT(NOT USED)

FLATELECTRODESHOWN

PSS 6-1C3 APage 17

ACCESSORIES (Cont.)

BushingsBushings may be used to mount sensors in a system using process piping larger than DN 20 or 3/4 inch. PVDF and 316 ss bushings are threaded on both ends, while CPVC(1) bushings are threaded on one end and provide a slip fit on the opposite end. See Figure 18. The bushing identification in Figure 18 corresponds to the last two characters in the bushing part numbers listed in the table below.

(a) Bushings with 3/4 NPT ID are used directly with DolpHin sensor. Bushings with 1 NPT ID are used with 1 inch Universal Bushings. Also, 1 x 1 bushings are used to lessen insertion depth.

Figure 18. Typical Bushing Configurations

(1) CPVC = Chlorinated Polyvinyl Chloride.

Table of Bushings

Bushing Size (a)

Part Number using:

316 ss (NPT)

PVDF (NPT)

CPVC (Slip)

3/4 x 13/4 x 1 1/43/4 x 1 1/2

BS810HABS810HFBS810HG

BS810HC–

BS810GZ

BS810KLBS810KMBS810KN

1 x 11 x 1 1/41 x 1 1/2

BS810HJX0177CFX0177CE

BS810HK–

BS810HH

BS810HMBS810HNBS810HP

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)PVDF 0.7 MPa at 90°C

0.35 MPa at 121°C(100 psi at 194°F)(50 psi at 250°F)

CPVC 0.7 MPa at 70°C0.4 MPa at 85°C

(100 psi at 158°F)(60 psi at 185°F)

HC, HK HA HF, HG

HM

GZ, HH

CE, CF, HJ

HN, HP

KL, KM KN

PSS 6-1C3 APage 18

ACCESSORIES (Cont.)

TeesA tee is available for insertion in a pipeline with user-supplied bushings, as necessary. The tee is offered in three sizes and available in 316 ss, PVDF, or CPVC materials. PVDF and 316 ss tees are threaded on all three ends, while CPVC tees provide a slip fit on all three ends. See table below and Figure 19. Also see the Tee Kits section that follows for tee/bushing assembly configurations.

Figure 19. Typical Tee Configuration

Table of Tees

Tee Size

Part Number using:

316 ss (NPT)

PVDF (NPT)

CPVC (Slip)

1 X0178JB X0178HV X0178HY1 1/4 X0178HW – X0178HZ1 1/2 X0173JY X0178HX X0178JA

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)PVDF 0.7 MPa at 90°C

0.35 MPa at 121°C(100 psi at 194°F)(50 psi at 250°F)

CPVC 0.7 MPa at 70°C0.4 MPa at 85°C

(100 psi at 158°F)(60 psi at 185°F)

TOP AND ENDS ARE EITHER ALL NPT OR ALL SLIP FIT DEPENDING ON

MATERIAL USED.

PSS 6-1C3 APage 19

ACCESSORIES (Cont.)

Tee KitsA tee kit consists of a tee and a bushing assembled together. The top of the assembly is for the sensor connections, while the two ends are for the pipeline connections. The assembled kits are available in 316 ss, PVDF, or CPVC. The 316 ss and PVDF kits have all NPT connections, while the CPVC kits have an NPT connection on top for the sensor, and slip fit connections on the pipeline ends. See table below and Figure 20.

(a) Tee kits with 3/4 NPT bushing are for direct connection of DolpHin series.Tee kits with 1 NPT bushing are for use with 1 NPT Universal Bushings.

Figure 20. Typical Tee Kit Configurations

Table of Tee Kits

AssembledSize (a)

Assembled Kit Part No. Using:

316 ss (NPT)

PVDF (NPT)

CPVC (Slip)

3/4 x 1 x 1 BS810HS BS810HV BS810HU

3/4 x 1 1/4 x 1 1/4 BS810HW – BS810HZ

3/4 x 1 1/2 x 1 1/2 BS810JA BS810JB BS810JD

1 x 1 x 1 BS810JE BS810JF BS810JH

1 x 1 1/4 x 1 1/4 BS810JJ – BS810JM

1 x 1 1/2 x 1 1/2 BS810JN BS810JP BS810JR

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)PVDF 0.7 MPa at 90°C

0.35 MPa at 121°C(100 psi at 194°F)(50 psi at 250°F)

CPVC 0.7 MPa at 70°C0.4 MPa at 85°C

(100 psi at 158°F)(60 psi at 185°F)

NPT BUSHING

NPT TEE

SLIP BUSHING

SLIP TEE

PSS 6-1C3 APage 20

ACCESSORIES (Cont.)

Universal Tri-Clamp Connection AssemblyA Tri-Clamp connection assembly is offered for users who require a quick-disconnect mounting arrangement. The mating Tri-Clamp flange and clamp are provided by the user. The Tri-Clamp connection assembly replaces the universal bushing assembly described previously, and is similarly locked in place with a bushing lockscrew. The connection assembly is comprised of the Tri-Clamp connection assembly, lockscrew, Viton O-ring, back-up ring, and split ring. Tri-clamp connections are available in standard 1.5 and 2 inch sizes, and are made from 316 ss with a 32 microinch finish, or better. See Figure 21 and table below.

Universal Flanged Connection Assembly with Integral (Welded-in-Place) Universal Bushing Assembly

A flanged end connection assembly is offered for users who require a flange mounted sensor with an integral universal bushing assembly. The mating flange and flange gasket and bolts are provided by the user. The universal bushing assembly described previously is welded to the flange to form a flanged end connection assembly, as shown in Figure 22. Flanged end connection assemblies are comprised of a flange welded to a universal bushing, lockscrew, Viton O-ring, back-up ring, and split ring. Flange assemblies are made from 316 ss and available in ANSI Class 150, 2-, 2-1/2-, and 4-inch sizes; and PN 10, DN 50 and DN 100 sizes. See Figure 22 and table below.

Figure 21. Universal Tri-Clamp Connection Assembly

Figure 22. Flanged End Connection Assembly with Welded-in-Place Universal Bushing Assembly

Table of Tri-Clamp Connection Assemblies

Material

Tri-Clamp Connection Assembly

Part No. Size

316 ss BS810ZU 1.5 in316 ss BS810ZT 2 in

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)

Table of Flanged End Connection Assemblies

Flange End Connection Assembly

Rating Size Holes Part No.

ANSI Class 150(316 ss)

2 in 4 BS810ZN2-1/2 in 4 BS810ZP4 in 8 BS810ZQ

DIN PN 10(316 ss)

DN 50 4 BS810ZRDN 100 8 BS810ZS

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)

BUSHINGLOCKSCREW SENSOR

ASSEMBLY(REFERENCE)

INTERNALO-RING SEAL,BACKUP RING,SPLIT RING,AND STOP USEDIN ONE OF TWOLOCATIONS ONLY.

3/4 NPT(NOT USED)

FLATELECTRODESHOWN

TRI-CLAMPCONNECTIONASSEMBLY

BUSHINGLOCKSCREW SENSOR

ASSEMBLY(REFERENCE)

INTERNALO-RING SEAL,BACKUP RING,SPLIT RING,AND STOP USEDIN ONE OF TWOLOCATIONS ONLY.

3/4 NPT(NOT USED)

FLATELECTRODESHOWN

FLANGE ASSEMBLY(UNIVERSAL BUSHINGWELDED IN PLACE)

PSS 6-1C3 APage 21

ACCESSORIES (Cont.)

Universal Flanged Connection with Sensor Assembly Threaded Directly to Flange

A flanged end connection with 3/4 NPT is offered for threading sensor directly to flange. Mating flanges, gaskets, and bolts are provided by the user. The flange is made from 316 ss and available in ANSI Class 150, 2-, 2 1/2-, and 4-in sizes; and PN 10, DN 50, and DN 100 sizes. See Figure 23 and table below.

Flow ChambersFlow chambers are a convenient way of mounting sensors in a system where a sample is provided by a small diameter sample line. The inlet and outlet ports of the chamber have 1/2 NPT threads, and connect to the system with user supplied fittings. The chamber is offered in 316 ss, PVDF, or CPVC. See Figure 24 and table below.

Figure 23. Flanged End Connection with Sensor Assembly Threaded Directly to Flange

Figure 24. Flow Chamber

Table of ANSI and DIN Flanges

Flange End Connection Assembly

Rating Size Holes Part No.

ANSI Class 150

2 in 4 BS808MP2-1/2 in 4 BS809LZ4 in 8 BS808MA

DIN PN 10 DN 50 4 BS808MBDN 100 8 BS809LW

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)

Table of Flow Chambers

Material Part NumberSensor

Connection

316 ss BS810SR 3/4 NPTPVDF BS810SS 3/4 NPTCPVC BS810SU 3/4 NPT

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)PVDF 0.7 MPa at 90°C

0.35 MPa at 121°C(100 psi at 194°F)(50 psi at 250°F)

CPVC 0.7 MPa at 70°C0.4 MPa at 85°C

(100 psi at 158°F)(60 psi at 185°F)

SENSOR ASSEMBLY(REFERENCE)

3/4 NPTCONNECTION

ANSI ORDIN FLANGE.FOUR BOLT HOLES WITH 2 in, 2 1/2 in, AND DN 50 SIZES.EIGHT BOLT HOLES WITH 4 in AND DN 100 SIZES.

SENSOR CONNECTION

PROCESS OUTLET

PROCESS INLET

3/4 NPT

SENSORASSEMBLY

316 ssAND CPVC

PVDF

1/2 NPT

PSS 6-1C3 APage 22

ACCESSORIES (Cont.)

Insertion AssembliesInsertion assemblies are used to install DolpHin sensors in a hot tap/retractable type mountings. They permit the sensor to be inserted and removed from the process, under rated pressure and temperature, without draining the tank, shutting down a line, or using a bypass system. The insertion assemblies are offered in three ways:

• Insertion Tube Assembly, BS810JU, for use with a user-supplied ball valve; requires 1 1/4 full port or larger ball valve

• Ball Valve Insertion Assembly, BS810LV, complete with 1 1/4 full port ball valve, retraction chamber with purge ports, and 0 to 8 inch adjustable insertion depth

• Ball Valve Insertion Assembly, BS810MJ, similar to BS810JU but with 0 to 16 inch adjustable insertion depth.

All three types provide continuously adjustable insertion depth from 0 to full length of tube, using a compression seal to hold the insertion shaft at the desired depth. This allows the installer to locate the sensing end of the pH/ORP probe at the optimum location for the application, and to adjust the depth in response to unexpected plumbing/hardware installation revisions.

All three insertion assemblies include anti-blowout protection; sensor and shaft will not fit through the compression nut.

The complete assemblies (BS810LV and BS810MJ) also offer the safety feature of purge ports on the retraction chamber. This allows the operator to purge away hot, pressurized, or hazardous chemicals before opening the assembly and servicing the sensor.

Process Wetted Materials are 316 ss, teflon ball seat, and Viton O-rings. Process connection is 1 1/4 NPT.

These assemblies include ease-of-use features, such as the push/pull plate for easy movement of the insertion shaft. Accessing the sensor is easy, and assembly parts stay together even when removing the sensor, so parts do not get lost.

The DolpHin sensor is attached to the shaft with redundant seals; 3/4 NPT sensor thread connects to the insertion shaft, creating one seal, while an O-ring on the upper body of the sensor seals on the ID of the shaft/sensor coupling. This sealing mechanism, when properly installed, prevents process liquid from migrating out through the shaft and possibly out the cable conduit to the transmitter.

These ball valve insertion assemblies are one of the most effective, safe, versatile means for installing the DolpHin sensors. Refer to Figure 25 and table below.

NOTEInsertion assemblies are not compatible with sensor termination Code B. However, Termination Codes A and Q are compatible.

Figure 25. Ball Valve and Insertion Tube Assemblies

Insertion Assemblies

Assembly TypeInsertion

Tube Ball Valve

AdjustableInsertion Depth (a)

0 to 14 in 0 to 8 in 0 to 16 in

Part Number BS810JU BS810LV BS810MJ(a) Refer to Dimensional Print DP 611-172.

Pressure-Temperature Rating

316 ss 1.4 MPa at 121°C (200 psi at 250°F)

BALL VALVE

PURGE PORT 1/2 NPT

LIQUID TIGHTFITTING

SENSOR VITONO-RINGS

PUSH-PULLPLATE

INSERTIONSHAFT

RETRACTIONCHAMBER

RETAININGRINGS

SENSOR

RETRACTION CHAMBER

1 1/4 NPT

PSS 6-1C3 APage 23

ACCESSORIES (Cont.)

Junction BoxesTwo surface-mounted junction boxes are offered. One, with terminals for seven conductors is for a sensor without a preamplifier. The second junction box, with terminals for nine conductors, is for a sensor with an internal preamplifier. There is a generous amount of space within each junction box to accommodate the terminal blocks, and the sensor and transmitter/ analyzer cable assembly terminations. These junction boxes are weatherproof and dusttight as defined by IEC IP65 and provide the watertight protection of NEMA Type 4. See Figure 26 and table below.

Patch Cords and Extension Cable AssembliesExtension cables are offered for adding length to the connection between the DolpHin sensor and the transmitter/analyzer. Choices include standard cable, high temperature cable, terminated cable ordered to length, and raw cable unterminated. Variopin quick connector or Foxboro specified junction box is recommended for connection of extension cable to sensor or sensor cable. This is especially important for sensors without integral preamplifiers.

Cable termination for connection to transmitter/ analyzer and junction box are crimped on straight pin lugs. Because of the straight pins, this style cable termination is much easier to pull through conduit than spade or other style lug terminations. Pin lug leads are numbered for connection to corresponding terminal strip numbers in Foxboro transmitters and analyzers. Refer to Figure 27.

Figure 26. Junction Boxes - Surface Mounted

Figure 27. Extension Cable Assembly with Straight Pin Lugs on Both Ends

Junction Box Assembly Part No. Application

Q0101CF When sensor does not include preamp, Model Code Selection “N”

BS807BZ When sensor includes integral preamp, Model Code Selection “P”

ELECT. SHIELDMEAS. ELECTRODE

SOL.GND.

REF.ELEC.

TEMP.COMP.

JUNCTION BOX WHENTHERE IS A PREAMP

JUNCTION BOX WHENNO PREAMP IS USED

3/4 NPTON THIS SIDE

STRAIGHTPIN LUG COAXIAL

CABLE

7-CONDUCTOR CABLEFOR SENSORS WITHOUT PREAMP

9-CONDUCTOR CABLEFOR SENSORS WITH PREAMP

NUMBEREDLABELS

STRAIGHTPIN LUG

NUMBEREDLABELS

PSS 6-1C3 APage 24

ACCESSORIES (Cont.)

Patch Cords and Extension Cable Assemblies (Cont.)

The Variopin quick connector is also available as a cable termination on one end of the extension cable and pin lugs on the other (also referred to as a “patch cord”). The connector is rated IP 67, with nickel plating and Viton O-rings. This extension cable is selected for use with sensors equipped with the mating Variopin quick connector, Model Code selection “B” or “Q”; refer to the Model Code Selection Guide section for advice. Refer to Figure 28.

To select the proper cable, first determine if the sensor will have an integral preamplifier. The sensor model code contains an “N” for no preamp or a “P” for preamp. Refer to the model code selection guide for advice regarding the preamplifier. Then select the cable termination, length and temperature rating required for the installation.

Extension cables for sensors without preamp are available as standard cable with PVC jacket, 85°C rating, 7 conductors (coax plus 5). They are also available in a high temperature version, with irradiated cross linked polyethylene jacket, rated to 125°C, also 7 conductors (coax plus 5). Sensors without preamps are restricted to 50 feet or less separation between sensor and transmitter/analyzer. Therefore, extension cables in this group are available in lengths up to 50 feet. Longer distances require the use of a preamp.

Extension cables for sensors with preamps are available as standard cable with PVC jacket, 85°C rating, 9 conductors. Preamps and preamp cable are not available for temperatures above 85°C. Extension cable for both the pin lug termination and Variopin types are available up to 500 feet maximum and are ordered by the foot.

Raw, unterminated cable is also available in continuous lengths up to 1000 feet. The installer must cut the cable to length and terminate the leads. Refer to Figure 29.

Figure 28. Extension Cable Assembly with Variopin Quick Connector and Straight Pin Lugs For

Sensors with or without Preamplifier

Figure 29. Raw, Unterminated Cable7-Conductor Extension Cable Shown

VARIOPIN QUICKCONNECTOR STRAIGHT

PIN LUG

CABLE LENGTH

SEVEN CONDUCTORS SHOWN

NUMBEREDLABELS

EXTENSION CABLEPRIOR TO ADDINGTERMINALS COAXIAL CABLE

POLYETHYLENEJACKET

TERMINATIONSSUPPLIEDBY USER

PSS 6-1C3 APage 25

ACCESSORIES (Cont.)

Patch Cord, Extension Cable, and Raw Cable Part Numbers

Patch Cords - for use with Sensors without Preamplifier (Model Code “N”)

Extension Cable - for use with Sensors without Preamplifier (Model Code “N”)

Extension Cable - for use with Sensors with Integral Preamplifier (Model Code “P”)

Raw Cable, Unterminated, Maximum Continuous Length, 1000 ft

Part No. Temperature Range Cable TerminationsLength (Feet)

BS811GU Standard (to 85°C) Variopin to Pin Lugs 10BS811GV Standard (to 85°C) Variopin to Pin Lugs 20BS811GW Standard (to 85°C) Variopin to Pin Lugs 30BS811GX Standard (to 85°C) Variopin to Pin Lugs 40BS811GY Standard (to 85°C) Variopin to Pin Lugs 50BS810QA High Temp (to 125°C) Variopin to Pin Lugs 10BS810QB High Temp (to 125°C) Variopin to Pin Lugs 20BS810QC High Temp (to 125°C) Variopin to Pin Lugs 30BS810QD High Temp (to 125°C) Variopin to Pin Lugs 40BS810QE High Temp (to 125°C) Variopin to Pin Lugs 50

Part No. Temperature Range Cable Terminations Length (Feet)

BS811HE Standard (to 85°C) Pin Lugs to Pin Lugs 10BS811HF Standard (to 85°C) Pin Lugs to Pin Lugs 20BS811HG Standard (to 85°C) Pin Lugs to Pin Lugs 30BS811HH Standard (to 85°C) Pin Lugs to Pin Lugs 40BS811HJ Standard (to 85°C) Pin Lugs to Pin Lugs 50BS810ZV High Temp (to 125°C) Pin Lugs to Pin Lugs 10BS810ZW High Temp (to 125°C) Pin Lugs to Pin Lugs 20BS810ZX High Temp (to 125°C) Pin Lugs to Pin Lugs 30BS810ZY High Temp (to 125°C) Pin Lugs to Pin Lugs 40BS810ZZ High Temp (to 125°C) Pin Lugs to Pin Lugs 50

Part No. Patch Length Temperature Range Cable Terminations

BS811JB Patch Cord, per foot to 500 ft max. Standard (to 85°C) Variopin to Pin LugsBS811HW Extension Cable, per foot to 500 ft max. Standard (to 85°C) Pin Lugs to Pin Lugs

Part No. Description

P0170UU For Non-Preamp Sensor, Standard Temp (85°C), per footP0170UA For Non-Preamp Sensor, High Temp (to 125°C), per footP0170UV For Preamp Sensor, Standard Temp (85°C), per foot

PSS 6-1C3 APage 26

ACCESSORIES (Cont.)

Buffers for use with DolpHin Model PH10 SensorsBuffers are available as a solution, or in a salt packet. When provided in a salt packet, the buffer is mixed with 0.47 litres (16 fluid ounces) of distilled water to convert to a buffer solution. Refer to Figure 30 and the table below for Foxboro part numbers for Buffer Solutions and Salt Packets.

Figure 30. Buffer Solutions and Salt Packets

Table of Buffer Solutions and Salt Packets

Type Buffer Description Part No.

Solution 4.00 pH, 0.47 L (16 fl oz) Q0104KC7.00 pH, 0.47 L (16 fl oz) Q0104KB10.00 pH, 0.47 L (16 fl oz) Q0104KA

Salt Packet

4.00 pH (Note a) 16001007.00 pH (Note a) 160010110.00 pH (Note a) 1600102

(a)Mix buffer packet with 0.47 L (16 fl oz) of distilled water to convert to solution form.

SALT PACKETCONVERTS TO

BUFFER SOLUTION

BUFFER SOLUTIONIN PLASTIC BOTTLE

PSS 6-1C3 APage 27

DIMENSIONS - NOMINAL

NOTENumerous accessories are offered with the DolpHin sensors. For dimensional information, see DP 611-172 for ball valve and tube assemblies, and DP 611-173 for all other accessories.

Flat Electrodes - Protective Guard not Required

pH Sensors ORP Sensors Dimension “A” Dimension “C” (a)

PH10-2, -3, -4 ORP10-1, -2 170 mm (6.7 in)53 mm (2.1 in) or

79 mm (3.1 in)(a) Dimension “C” is adjustable to dimensions listed by adjusting the position of the bushing on the sensor.

Domed Electrodes with Protective Guard

pH Sensors ORP Sensors Dimension “B” Dimension “D” (a)

PH10-1, PH30-1 Not Applicable 180 mm (7.1 in)63 mm (2.5 in) or

89 mm (3.5 in)(a) Dimension “D” is adjustable to dimensions listed by adjusting the position of the bushing on the sensor.

431.7

B

D

A

C

SENSOR WITH CABLE.TERMINATED WITH

CRIMPED-ON FERRULETERMINALS OR "QUICK"

CONNECTOR

3/4 NPT CONDUITCONNECTOR

OPTIONALUNIVERSALVARIABLE

DEPTH BUSHINGWITH 1 NPTPROCESS

CONNECTOR

23 mm (0.90 in)WRENCH FLATS

3/4 NPTPROCESS

CONNECTOR

SENSORWITH FLAT

ELECTRODE

SENSORWITH DOMEDELECTRODE

SENSOR WITH INTEGRALQUICK-DISCONNECT

CONNECTOR

MOVABLEBUSHING GUIDE

(SPLIT RING)

ELECTRODEPROTECTIVE GUARD

FLAT ELECTRODE DOMED ELECTRODE

VARIOPINQUICK

CONNECTOR

BUSHINGLOCKSCREW

mmin

PSS 6-1C3 APage 28

FOXBORO pH AND ORP PRODUCT FAMILY

OTHER M&I PRODUCTS

Foxboro offers a wide selection of pH/ORP sensors, transmitters, and accessories. There is a Foxboro pH/ORP product ideal for your application. Check our web site for these and other liquid analytical products: conductivity, resistivity, and dissolved oxygen.

www.foxboro.com/m&i/echem.

Foxboro provides a broad range of measurement and instrument products, including solutions for pressure, flow, analytical, positioners, temperature, controlling and recording. For a listing of these offerings, visit the Foxboro web site at:

www.foxboro.com/m&i.

33 Commercial StreetFoxboro, MA 02035-2099United States of Americawww.foxboro.comInside U.S.: 1-866-PHON-IPS

(1-866-746-6477)Outside U.S.: 1-508-549-2424 or contact your local Foxboro representative.Facsimile: 1-508-549-4999

Foxboro and DolpHin are trademarks of Invensys Systems, Inc.Invensys is a trademark of Invensys plc.All other brand names may be trademarks of their respective companies.

Copyright 2002 Invensys Systems, Inc.All rights reserved

MB 010, 012 Printed in U.S.A. 0802